Apparatus for casting metals and the like.



G. W. SEYMOUR. US FOR CASTING METALS AND'THE LIKE. A PLIOATION FILEDcow. e, 1913.

APEAEAT Patented June 30 menu s WILLIAM SEYMOUR, or

CHRISTCHURCH, New znannnr APPARATUS non onsrme METALS Ann 'I'HE L'I'KE.

Specification of Letters Patent,

Patented June 30, 13141.,

To all whom 2'2, may concern Be'.it known that I CHARLES W LLmiiSEYMOUR, a citizen of t Zealand, and residing at Colombo street,Christchurch, in the Provincial District of Canterbury, in the Dominionof New Zealand, have invented certain new and useful Improvements inApparatus for Casting Metals and the like, of which the following IS- aspecification,

ings can This invention relates to apparatus used forcasting metals andmore particularly for I dental castings or castings required by ew--elers and 'rovides means whereby such castproduced in a. moreexpeditious manner than heretofore.

he invention consists in mechanism wherein adjustment of the variousparts to suit diiierent sizes of cylinders used for casting can beperformed in one operation;

the element 0 ing wherein? the bracket is pivo inunication through apipe,

59 17, leads from a portway P in t gt bieq i and in improved means foradmitting coni- 'rcssed air to the top of such cylinder for oroin themetal into the mold.

With the apparatus at present employed of chance is not eliminated, andgreat care is' necessary to insure good results. but by my invention thebest results are obtained with a minimum of risk.

The inventioii'is illustrated in the draw- Figure 1 is a side elevation,Fig. 2 is an: end elevation partly in SECtIOII. F g. 3 is a sectionalplan on A. A. 1.. Fig. 4

,JS pine end elevation illustrating a modiatio'n'. The, base plate,- 1,has a vertical standard, 2, on which is mounted a bracket, 3, ad ustnblevertically, and secured in POSltlOIl b a set screw, 4. A longer, 5,shdable upon ed at 8 to a hand lever, 9, the end of which is jointed at:10, to a link, llfthe opposite end of said link being pivoted at 12 inthe bracket, 3. two-way cook, 13 attached to the bracket s in co 2 14,,with a tank or main, containing-compressed air. An arm, 15, upon theplug of the tap s adapted to be struck and actuated by a striking rod,16, projecting from the lever,,9. A tube, in bracket, 3, which is incommunication, with lock, 13, to ;aic:ip,"l8 attached to the lower endofthe ,plun er which has acentral portway, 19. A I 'cyliiier. 20,contaamng'themold, 21, wheretp be cast is placed Within e Dominion of New a recess fornied in the base plate and is adaptedto be closed by saidcap 18, which carries in a recess a pad, 22, of asbestos for the purposeof forming a tight joint. Au arm, 23, extending from bracket, 3,supports a blow pipe, 24, 'eiiiployed for melting the metal to be cast,such blow pipe 2% being supplied with gas through a pipe 25. The blowpipe is also in communication with the compressed air supply through apipe, 20, leading to the cock, 13. A set screw, 33, projecting into avertical slot, 3i, in stand ard, 2, prevents rotation of the bracket.

plunger is raised by In operation the means of the lever, and thecylinder contain-- ing the mold, and above it the metal to be melted isplaced within the recess in the bed plate. The blow pipe is then made toplay upon and melt thenietal, the lever is then depressed, and the capforced tightly down upon the top of the cylinder, During the descent ofthe plunger, the plug of the cock is turned by the striking rod, 16,engaging the arm, 15, whereby the air is shut'ofi from the blowpi 1e,and simultaneously admitted through tu e, 17 to the interior of the cylinder, the pressure therein forcing the molten metal through a gate, 27,into the recess, 28, of the mold, a sound and accurate casting beingthereby obtained. The standard has indicating markings upon it, and thebracket is adjusted relatively to marks according to the size of pressedair is tion illustrated in Fig. 4 may be made in the apparatus; a singlew-y 0001;,29, instead of a two way cock being employed. A pipe, 30connects the cock with the cap of the mold, and an arm, 31, upon theplug of the cock is adapted to be engaged by a striking rod, 32, and tocause compressed air to pass into the mold when the lever pre viouslydescribed is depressed. In this case the blowpipe is operated by abellows in the usual way.

What I do claim and desire to secure by Letters Patent of the UnitedStates is:

In a machine (F the class described the combination of a cylinder tocontain a mold, a vertical standard, a bracket longitudinally adjustableon said standard to suit the size of cylinderused, a plunger'i'eoiprocable in said bracket, a cap on the end o f said plungeradaptedto close said cylinder, a twoone of these cylinder beway cockmounted-0n said brackhmeens for supplying compressed air to said,c'o'ck, a blow pipe mounted on said bracket, means for supplyingas'to'said blow pipe, 6 conncctihg sai blow pipe to one outlet of thetwo-way cock, an independent pipe connecting the other outlet of the twoway cock tothe cap, for operating the plunger, and a striking rod onsaid lever 10 for diverting the compressed air from the" blew pipe tothe cap, when the plunger descencls, for the purpose setforth.

In testimonywheree I have signed my name to thisspecification in thepresence of two witnesses. v

()Philthlll?! WILLIAM SEYMOUR.

vWitnesses:

v 1E1, S J. Ham.

